There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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A poll has found that computer 'nerds' make the best lovers, with 82 percent of IT geeks claiming they put their partner's pleasure above their own.
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In Finland, Valentine's Day is called "Ystävänpäivä" which translates into "Friend's day".
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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